Slotting-machine.



J. MONKS.

SLOTTING MACHINE. I APPLlCATlON FILED 05c. 30, 1911.

1,166,621. Patented Ja11.4, 1916.

a SHEETS-SHEET 1.

WITNESSES: INVENTOR.

1. MONKS, SLOTTING MACHINE, APPLICATION FILED DEC. 30, 1911. v ,v

Patented Jan. 4, 1916.

3 SHEETS-SHEET 2.

WITNESSES.-

" JNVENTOR.

COLUMBIA PLANOGRAPH c0.,\v/\sH1NOToN. D. c.

J. MONKS.

'SLOTTING MACHINE. 7 APPLICATION FILED mac. so. 19H;

Patented J an. 4, 1916.

3 SHEETS-SHEET 3.

WITNESSES: 627

COLUMBIA PLANOGRAPH C0,,wAs1-llNuTON, n. c.

i .STAS PATENT ornicu.

JAMES MONKS, OF HARTFORD,,CONNECTICUT.

s'Lo'r'rING-MAoHINE.

To all whom it may concern Be it known that I, JAMEs MONKS, a subject ofthe King ofEngland, and a resident of Hartford, in the county ofHartford and State of Connecticut, have invented a new and Improvedslotting-Machine, of which the following is a specification.

My invention relates more especially to that class of machines used forslotting the heads of screw blanks, and an object of my invention, amongothers, is to provide a device of this class that shall be extremelyefficient in the character of work produced, and rapid in the quantityof work turned off. This and other objects, which will appear from theaccompanying drawing and description, may be obtained in theconstruction and use of the machine illustrated in the accompanyingdrawings, in which Figure 1 is a view in front elevation of a portion ofa machine embodying my invention, the holders shown in Fig. 3 beingomitted. Fig. 2 is a detail view, scale enlarged,

of'the mechanism relating to the saws, and also the feed for the carrierdisks. Fig. 3 is a detail view illustrating the construction of thesupport for the carrier disk, the securing means for the spring holdersand the ex tractors, shown in Fig. 1, being omitted.

Fig. 4 is a detail view illustrating the feed '12 is mounted having adriving pulley 13 secured thereto. A driving pinion 14- is secured tothe driving shaft and meshes with an intermediate gear 15 suitablymounted, as upon a stud projecting from the standards and having anintermediate pinion 16 meshing with a gear 17 on a cam shaft 18 mountedin the standards or legs, and having secured thereto cams for performingvarious operations.

. A carrier disk 19 is suitably mounted in the frame of the machine,which frame apart from the bed and standards hereinbefore mentioned willbe generally designated by the numeral 20. This diskhas notches 21located in, its periphery to receive blanks,

the heads of which are to be slotted or nicked Specification of LettersPatent.

Patented Jan. 4, 1916. I

Application filed December 30, 1911. Serial N 0. 668,600.

suitable mannerto a shaft 22, to which shaft an indexing wheel 23 issecured as by means of a tapered locking pin 24: passing through 28forming the bearing forthe arm. A pawl 29 is pivotall mounted upon thearm in such position that its free end will engage the notches 26 in theindexing wheel.

My improved machine herein shown contains a plural number of carrierdisks which operate in pairs, a single member in many instances beingemployed to perform a dou- -ble function in connection with both disks,

and where herein the description mentions a single disk only, it will beunderstood as applying equally to both or all the disks unless itb'especifically stated that it refers to a designated disk.

An indexing arm 30 is secured to and projects from the hub 28 inposition to be operated by an indexing plunger 31 mounted forreclprocatmg movement in the frame 20.

In the form .of construct on herein shown a single plunger is employedto actuate the V indexing mechanism of two disks, this'plunger having across arm 32 located to underlie two of the indexing arms 30, as plainlyshown in Fig. 4. An indexing cam 33 is secured to the cam shaft 18 inposition to operate the plunger 31.

An important feature of my invention resides in such construction thatwhat I term the effective movement is obtained by means of springs, andthis is true of the indexing mechanism, the movement of the parts toposition the pawls for feeding movement being obtained by means of thecam 33, and the actual feed or effective movement being obtained bymeans of a feed spring 34 attached to a spring supporting arm- 35secured to each of the pawl supporting arms 27, in the constructionshown herein a single spring performing thefunction for each of the.indexing mechanisms, the ends of the springs being securedto posts 91.

By reason of the peculiar arrangement of saws hereinafter to bedescribed the carrier disk receives blanks in two of its blank.

of disks. gages a locking bolt cam 40 secured to the notches at eachsingle movement of the disk, a pause occurring during such movement toallow a blank to be deposited in one of the notches, the other blankbeing deposited while the carrier is at rest, just'before it starts itsmovement or just after it completes it. In order to effect this peculiarfeeding movement the indexing wheel 23 is provided with half the numberof notches a's are in the periphery of the disk ashereinbeforedescribed, so that two of the notches will be presented to receive ablank this result a step- 36 is provided in the cam which momentarilyarrests the fall of the plunger 31 from the highest to the lowest partof the cam, which movement takes place "abruptly, the movement of theparts toplace the pawl in position to engage its proper notch takingplace gradually and being effected by a gradual rise of the cam from itslowest to its highest point.

A locking bolt arm 37 is pivotally mounted on the frame of the machineand has a. locking bolt 38 positioned to engage the notches 26 in theindexing wheel, these notches it will be noticed being so formed thatthey serve the double purpose of indexing notches and locking boltnotches. r locking bolt spring 39 draws the bolt into engagementwith thenotches, as shown in E at a single spring operating upon the lockingbolt appurtenant to each of a pair The lower end of each arm encam shaft18 and properly formed to withdraw the bolt from its notches and allowit to reengage said notches at the proper time. A pair of saws ismounted appurtenant to each carrier disk to slot the heads of the blankscarried thereby, these saws, being caused to operate simultaneously innicking the heads of blanks, and so positioned that they will operateupon different blanks, one saw operating upon every other blank carriedby the disk and the other saw operating upon those not cut by the firstmentioned saw. In the peculiar feed hereinbefore described a blank iscarried past one saw at each movement of the carrier disk without beingoperated upon by that saw, but said blank will be located opposite thenext saw and be operated upon thereby at some cutting movement. YVhile Ihave shown a pair of saws operating simultaneously upon every otherblank or lowered.

in different sets in the carrier, and each single feed of the carrierpresenting two blanks to be so operated upon, it will be understood thatthis idea may be extended so that more than a pair of saws may beemployed, the number of blanks carried past asingle point in each feedof the carrier being made to correspond with the number of sawsemployed.

in the construction herein shown the saws are located almost but notquite upon ainetrically opposite sides, but in such position thatneither saw will operate upon a blank cut by the other saw. Each saw hasa shaft 42 mounted on a saw slide e3 movable upon the bed 11. This bedis slotted as at 45 to permit movement of the saw shaft L2 whichprojects through said slot,

and an opening 46 through the slide is also slightly greater in diameterthan the diameter of the shaft in order to allow for adjustment of thesaw base l? on the slide The shaft has a head 8 to receive a flangedbushing 49, between which and a clamp nut 50 the saw i1 is secured, thenut 50 being held in place as by means of a nut 51.

The saw base 427 sets within a flange 5:2 uprising from the slide 43,the latter having a dovetailed lip 53 engaging a similar shaped recessin the base. An adjusting screw rotatably carried by the saw base l7 hasits threaded end entering a threaded hole in the saw slide 43, and meansof which the saw base is held in. its position on the slide.

As a means of adjusting the saw vertically I provide an adjusting arm 55secured to a lip 56 projecting from the underside of the saw base l7,this arm extending downward and then horizontally into such positionthat the saw shaft may pass through it and be partially supportedthereby. This arm is preferably slotted, said slot extending laterallyinto the opening through the arm, and a lock bolt 57 is employed tofirmly hold a gear adjusting thimble 58 which is screw threaded into theopening through the arm. A gear supporting sleeve 59 surrounds'the lowerend of the saw shaft a2 and fits within the thimble 58 and has a nut 60abutting against the thimble.

A saw adjusting nut 61 is threaded upon the shaft 42 and has screws 62extending into an annular slot 63 in the sleeve 59. A saw driving gear641-. is mounted to slide freely on the sleeve 59, a set screw 66passins; through the gear hub and enlarged hole in the sleeve holdingboth in place on the shaft 42.

The saw is adjusted vertically by means of the saw adjusting nut 61.which. being rotated and held against vertical movement by the sleeve59, causes the shaft to be raised The gear 64 is adjusted to igiee geai"proper'iposition by m'eans'of the-adjusting thimble 58, it being notedthat this construction affords a means whereby the saw may be adjustedindependently of the gear, so

that when the gear is placed in proper position the saw may then'be"properly placed independently ofsaid gear. In thus adJusting thegear, when the thimblei58has been described applies to each and all ofthe saws which may be employed, the two pinions being mounted onadjacent sldes ofthe saw driving gears as shown in Fig. 1. The gears 64mesh with the pinions on the upper sides thereof, so that theslightmovement ofsaid gears caused by the feed of the saW to en- 2: gagethe blanks will not appreciably affect the meshing of the gears.

A rock shaft 68 is mounted in the frame of the machine, a rocking arm'69 being secured thereto. Saw feed arms .70 are secured to the rockshaft 68, there being an arm appurtenant toeach saw employed in themachine, four saws being shown her'ein. A feed adjusting screw 71 ismounted in the top of each arm. to engage .a strut 72 resting within arecess in the head of an abutting .screw 73, the presence of. this strutpermitting lateralmovement of the screw7l caused byits movement on thearc of circle. A spring 74 is employed toforce the upper end of'the sawfeed arm and the saw slide together to hold the strut 72 in place, and

the screw 73 also looks the base 47 and slide 43 together. One end of aplunger 75 engages the rocking arm 69 and the opposite endof the plungerengages within a recess 76 in a feed actuator 77 pivotally supportedupon the frame part 20, there being a number of the recesses '1' 6located at different distances from the pivot 7 8. By locating the endof the plunger 7 5 in different recesses different degrees of feedingmovement of the 'saw may be obtained. The free end of the feed actuatoris in engagement with a saw. feed am 79 secured to the cam shaft 18,and-a spring 80 secured to a stationary part ofthe frame at one end andtothe arm 69 holds the parts in position to retainthe plunger 75 inplace.

When a rapid feed of the saws 1s given a great pressure is'caused upon.the shaft of 'the carrier disk, and in order that the saws may berapidly fed with'out'causing undue pressure upon the shaft of thecarrier disk I ."pr'ovide means'fOr supporting said diskdur- :ing thecutting operation ofthesaws; This supporting means consists ofsupporting wedges Slinterposed between! the disks 19 and an abutment 82forminga part of the bed oftthe'machine,'orrigidly secured there- 'to. Awedge is located upon each side of the disk in: proper. position toresist the force of the cutting action of each saw.

Each wedge is secured to a wedge supporting arm 83 secured to awedge'rock shaft 84 mounted in the frame parts. A wedgeactuating arm 85is secured to therock shaft and projectsin position to engage a Wedgeoper- "ating cam 86 secured to the cam shaft 18. A single cam maybe-employed for operating a number of wedges, in the construction shownherein fourwedges, two appurtenant to each of two disks, being "operatedby a single ca m.. This is accomplished by means of connecting .bars 87,each bar connecting twowedges located on the same side of each of thedisks 'and,.as-shown in Fig. 3, the bar on the left hand side of thefigure connecting the lugs 88 which receive the initial forceand which.is transmitted through intermeshing toothed segments 93 withv the barfor operating the wedges on the right hand side of the disks. I I 1 Thecam 86 is formed to operate wedges at the proper time, withdrawing themat the time when the disks are rotated.

Springs 94 are employed to force the wedges into place to support thedisks, a. single spring, as shown in Fig. 3, being employed to operateeach pair of wedges appurtenant to a single disk, and forcing them intoplace when the-carrier disks come to a rest and during the time that thesaws are cutting the blanks. In the preferred form of con- .struction:and as shown herein the wedges act againstlresilient members or springholders 96, although this isnot absolutely essential. The disks are thusfirmly held during the cutting operation and the saws can be forcedinward to their utmost cutting capacity, this greatly increasing thespeed with whichthe machine may be operated.

Y A holder 95 may be employed if desired to retain the blanks in thenotches in the-disk,

thisholder-extending along the side of the disk, as .shown in Fig. 3.Any suitable means for supplying the blanks to the carrierdisks may beemployed, as shown-herein a hopper 89 having a chute 9O beingemployed.As this forms no part of my present invention and maybe of any suitablecon- 7 struction further description is omitted herein. 1 r l The springholders 96 encircle each of the disks. and exert a yielding hold npontheblanks in the notches, these spring holders being secured at each'enditoholder bases 98, shown in Fig. 1 of the drawings but omitted in Fig. 3.It will be noted, as seen in Fig.

3', that the iwedges 81 actagainst these spring holders in backing upthe pressure upon the carrier in the operation of the tools, theholders,' upon release of the wedges, retaining just suflicient holdupon the blanks to keep them in place. Extractors 99 project within thegrooves 100 in the carrier disk, in the present form these extractorsbeing secured to the side of the chute 90, each blank as it approachesthe extractor being forced out of its recess in the edge of the disk.

I claim l. A carrier having means to receive blanks, a single feeddevice for feeding blanks to the carrier, tools positioned to operatesimultaneously each upon a blank different from that operated upon byanother tool, and means for operating the carrier to receive a pluralnumber of blanks at each operation of the feeding means.

2. A carrier having means to receive blanks, means for feeding blanks tothe carrier, a pair of tools positioned each to operate upon a blankdifferent from that acted on by the other tool, and means for operatingthe carrier at each step a distance twice that between each of the blankreceiving means to receive a plural number of blanks at each operationof the feeding means.

3. A carrier having means to receive blanks, a plural number of toolspositioned each to operate upon a blank different from that acted uponby another tool, means for operating the carrier at each step a distanceequal to that between each of the blank receiving means multiplied bythe number of tools, and a single feed device for delivering blanks intoeach blank receiving means as it passes the feeding device, whereby anumber of blanks equal to the number of tools are placed in the carrierat each movement of feed thereof.

4. A carrier having means spaced to receive blanks, means for feedingblanks to the carrier, a plural number of tools positioned to operateupon blanks in the carrier, means to move the carrier at each single.feeding movement a distance equal to that between a plural number ofblank receiving means, and means to cause a dwell in the movement of thecarrier between the starting and stopping of each feeding movementthereof.

5. A carrier having means evenly spaced to receive blanks, means forfeeding blanks to the carrier, a tool positioned to operate upon a blankin the carrier, means to move the carrier at each single feed movement adistance equal to that between a plural number of blank receiving means,and means to cause a dwell in the movement of the carrier for the feedof a blank to each of the blank receiving means.

6. A carrier having means evenly. spaced to receive blanks, means forfeeding blanks to the carrier, a plural number of tools each to workupon a blank different from that acted. 1 011 by another tool, means formoving the carrier at each feeding movement a distance the product ofthat between the blank receiving means multiplied by the number oftools, and means to cause a dwell of the carrier to receive a blank eachtime a blank receiving means arrives inposition for that purpose.

7. A carrier having means evenly spaced to receive blanks, means forfeeding blanks to the carrier, a plural number of tools each to operateupon a blank different from that acted upon by another tool, means tofeed the carrier to. present a new blank to each tool, and a cam shapedto control the movement of the feeding means and cause a dwell thereofbetween the extremes of each feeding movement to permit the placing of ablank during such dwell.

8 A carrier having means to receive blanks, tools positioned to operatesimultaneously each upon a blank different from that operated upon byanother tool, means for operating the carrier, and a single feed devicefor delivering blanks into each blank receiving means as it passes thefeeding device, whereby a plural number of blanks are deposited in thecarrier at each feed ing movement thereof.

9. A carrier having means to receive a blank, means for feeding blanksto the carrier, a plural number of tools each to operate upon a blankdifferent from that acted upon by another tool, means for impartingfeeding movement to the carrier and including a plunger, and a camagainst which said plunger rests, said cam being shaped to move theplunger in one direction and having a dwell to permit feed of a blank tothe carrier between its extreme feeding movements.

10. A pair of carriers each having means to receive blanks, means forfeeding blanks to the carriers, tools to operate upon blanks in eachcarrier, means for operating each of the carriers, and means foractuating said operating means and including a cross arm arranged toengage each of said operating means.

11. A pair of carriers each having means to receive blanks, means forfeeding blanks to the carriers, tools to operate upon blanks in eachcarrier, means for moving the carriers, a cross arm to operate saidmoving means in one direction, and a cam connected to operate said crossarm and shaped to govern the movement thereof.

12. A carrier disk arranged to receive blanks, means for feeding blanksto the disk, means for rotating the disk, a tool adapted to operate upona blank held by the disk, means for supporting the disk at its peripheryagainst the pressure exerted 13. A'carrier disk arranged to receivemeans for feeding blanks to they blanks, disk, means for rotatlng thed1sk, an abutment for the disk, a Wedge, and means for moving the wedgebetween the abutment and diskto support the latter during opera-- tionof a tool. 7

14. A carrier disk having meansto receive blanks, means for feedingblanks to the disk, a tool to operate upon blanks in the disk, abutmentslocated upon opposite sidesof the disk, wedges located between the diskand abutments, and means for mov-- disk and abutments to rigidly supportthe disk during operation of a tool.

15. A carrier disk having meansto receive a blank, means forirotatingthe carrier disk, means for feeding blanks to the disk, abutmentslocated upon opposite sides of the disk, wedges located between the diskand abutments, means for feeding a tool to operate upon a blank in thedisk, and means for moving the wedges into place to support the diskbefore the beginning of operation of the tool and to withdraw the wedgesafter the completion of this operation.

16. A carrier disk having means to receive a blank, means for feedingblanks to the disk, a tool to work upon a blank in the disk, abutmentslocated on opposite sides of the disk, wedges located between saidabutments and disk, supports for the wedges operatively connected tosimultaneously move the wedges between the disk and abutments, and a camoperating upon one of the supports to actuate both wedges.

17. A carrier disk having means to receive a blank, means for feedingblanks to the disk, a tool to operate upon blanks in the disk, abutmentslocated at opposite edges of the disk, wedge rock shafts located onopposite sides of the disk and having wedge supporting arms projectingtoward each other, wedges supported on said arms and located between thedisk and abutments, connection between said arms to operate them toforce the wedges simultaneously between the abutments and disk, andmeans for operating said shafts.

18. A pair of carrier disks each having means to receive blanks, meansfor feeding blanks to the disks, a tool to operate upon the blanks ineach disk, abutments located at opposite sides of each disk, wedgeslocated on opposite sides of each disk and in the space between the diskand the abutments, connections between all of the wedges tosimultaneously move them into place to the opposite side of said disk.

mg the wedges into the space between the support the disks and towithdraw them, and a single means for operating said Wedges.

. 19. A pair of carrier disks each'having means to receive blanks, meansforv feeding blanks to the disks, means for rotating the disks,.abutments located at opposite edges of each disk, wedge rock shaftslocated on the same side of each disk, wedges supported by saidshafts,-a' connection between each of said shafts to move them in thesame direction, wedge rock shafts supported on the opposite side of eachof said disks, wedges supported byeach of said latter rock shafts,

a connection between each of the last mentloned rock ,shafts to: rotatethem simultaneously in the same direction, a connection between two ofthe rock shafts located ondifferent sides of the two disks whereby allof the wedges are simultaneously moved into place to support, each ofthe disks,.andmeans for acting upon one of therockshafts to, operateall. p I I .20. A pair of carrier disks each having means to receiveblanks,means forfeeding blanks to the disks, a' tool to operate upon theblanks in each disk, an abutment lo-" cated at the peripheryofieachzdisk, a wedge located to engage each disk in the space betweenit and said abutment, connections between said wedges to simultaneouslymove them into place to support the disks and to withdraw them, and asingle means for operating said wedges.

21. A carrier disk having recesses for blanks in its edge, means forfeeding-blanks to the disk, means for rotating the disk, tools to workupon blanks held in the disk, an abutment, a wedge located in the spacebetween the abutment and edge of the disk, a yielding member interposedbetween the wedge and the disk, and means for moving the wedge againstthe disk to support the latter.

22. A carrier disk having recesses for blanks, means for feeding blanksto said recesses, means for rotating the disk, tools to operate uponblanks in the disk, a holder including a spring band encircling the diskto exert a yielding hold upon blanks in said recesses, an abutment, awedge located'in the space between the abutment and said holder, andmeans for moving the wedge into said space and against said holder tosupport the disk. 7 a i 23. A carrier disk having means to receiveblanks, means for feeding blanks to the disk, means for rotating thedisk, a saw shaft ositioned to support a saw for operation on the blanksin the disk, a gear secured to said shaft, means for driving said gear,means for adjusting the shaft and saw longitudinally of the shaft, andmeans for in-' dependently adjusting the gear in the same direction.

24:. A carrier disk having means to receive blanks, a saw shaft mountedon a sliding support, the support, a saw secured to one end of theshaft, a gear secured to the opposite end of the shaft, means forsliding the support, and a driving gear in mesh with the gear on saidshaft, the latter having feeding movement independently of said drivinggear.

25. A carrier disk having means to receive blanks, a sliding support,means for sliding the support, a shaft mounted in said support, a sawsecured to one end of the shaft, a gear secured to the opposite end ofthe shaft, and a driving gear meshing with said gear on the shaft, thelatter moving tangentially of the former in the feeding operation of thesaw.

26. A carrier disk, a feeding slide, a shaft supported on the slide, asaw secured to the shaft, means for rotating the shaft, a pivoted lever,a cam for operating said lever, and a connection between the slide andpivoted lever including a rod having its ends loosely engaging recessesin its supporting members.

Copies of this patent may be obtained for 27. A carrier disk, a feedslide, a shaft mounted on the slide, a saw secured to the shaft, meansfor rotating the shaft, a rock shaft, a rocking arm pivotally connectedwith the slide, a pivoted lever, means for moving the lever on itspivot, and a rod connecting said arm and lever and having means forengagement therewith at variable distances from a pivot whereby avariation of the feed of the saW is obtained.

28. A feeding device for slotting machines including a carrier havingmeans spaced to receive blanks, means for feeding blanks to the carrier,means to move the carrier ateach single feeding movement a distanceequal to that between a plural number of blank receiving means, andmeans to cause a dwell in the movement of the carrier between thestarting and stopping of each feeding movement thereof.

JAMES MONKS.

Witnesses:

ARTHUR B. JENKINS, EVA L. STOUGHTON.

five cents each, by addressing the Commissioner of Patents, Washington,D. 0.

